The present disclosure discloses a polarized three-dimensional display panel and a pixel cell thereof. The display panel comprises an array substrate, which includes a plurality of pixel cells arranged in a plurality of pixel zones configured by a plurality of scanning lines and a plurality of data lines arranged in a staggered manner. Each pixel cell comprises a primary pixel electrode configured to receive a scanning signal of a first scanning line, and further to receive a data signal in a data line, so as to have a primary zone voltage; a secondary pixel electrode configured to receive the scanning signal of the first scanning line, and further to receive the data signal in the data line, so as to have a secondary zone voltage; and a charge-sharing unit configured to receive a scanning signal of a second scanning line, so as to allow a voltage difference between the secondary zone voltage and the primary zone voltage, wherein the primary pixel electrode and the secondary pixel electrode are disturbed in a left-right manner. The present disclosure can effectively solve the problem of inconsistent degrees of binocular signal crosstalk in viewing a polarized three-dimensional display from a top view and a bottom view.
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1. A pixel cell used in a polarized three-dimensional display panel, comprising:
a primary pixel electrode configured to receive a scanning signal of a first scanning line, and further to receive a data signal in a data line, so as to have a primary zone voltage;
a secondary pixel electrode configured to receive the scanning signal of the first scanning line, and further to receive the data signal in the data line, so as to have a secondary zone voltage; and
a charge-sharing unit configured to receive a scanning signal of a second scanning line, and further to share charges in the secondary pixel electrode, so that the secondary zone voltage of the secondary pixel electrode is different from the primary zone voltage of the primary pixel electrode;
wherein the primary pixel electrode and the secondary pixel electrode are distributed in a left-right manner.
17. A polarized three-dimensional display panel comprising an array substrate, which is provided with a pixel cell, comprising:
a primary pixel electrode configured to receive a scanning signal of a first scanning line, and further to receive a data signal in a data line, so as to have a primary zone voltage;
a secondary pixel electrode configured to receive the scanning signal of the first scanning line, and further to receive the data signal in the data line, so as to have a secondary zone voltage; and
a charge-sharing unit configured to receive a scanning signal of a second scanning line, and further to share charges in the secondary pixel electrode, so that the secondary zone voltage of the secondary pixel electrode is different from the primary zone voltage of the primary pixel electrode;
wherein the primary pixel electrode and the secondary pixel electrode are disturbed in a left-right manner.
2. The pixel cell according to
3. The pixel cell according to
4. The pixel cell according to
a second switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the secondary pixel electrode.
5. The pixel cell according to
a first switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the primary pixel electrode.
6. The pixel cell according to
7. The pixel cell according to
8. The pixel cell according to
a second switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the secondary pixel electrode.
9. The pixel cell according to
a first switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the primary pixel electrode.
10. The pixel cell according to
a second switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the secondary pixel electrode.
11. The pixel cell according to
12. The pixel cell according to
a second switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the secondary pixel electrode.
13. The pixel cell according to
14. The pixel cell according to
15. The pixel cell according to
16. The pixel cell according to
18. The polarized three-dimensional display panel according to
19. The polarized three-dimensional display panel according to
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The present disclosure relates to a three-dimensional image display technology, particularly to a polarized three-dimensional display panel and a pixel cell thereof.
Film Patterned Retarder (referred to as FPR), also known as a polarized three-dimensional display panel, is one of the mainstream products in the current three-dimensional display market. An FPR three-dimensional display panel comprises an array substrate and a color filter substrate. One side of the color filter substrate far away from the array substrate is provided with a phase retardation film, which is used to divide the three-dimensional display image into left and right eye images by cooperating with polarized glasses. The left and right eye images are then transferred to the viewer's left and right eyes, respectively. Subsequently, the viewer's brain will fuse the left and right eye images into a stereoscopic image accompanied with depth information, so that the three-dimensional display function is achieved. Specifically, the phase retardation film can be partitioned in accordance with the pixel row, with two adjacent rows being 45° and 135° quarter-wave plates respectively, so that the even-row pixel cells and the odd-row pixel cells will display circularly polarized lights in the opposite directions, thus achieving the purpose of separating the left and right eye images.
Meanwhile, in order to solve the problem of large viewing angle color shift, the array substrate of the polarized three-dimensional display panel generally adopts the pixel cell structure as shown in
Besides the aforementioned color shift problem, when the viewer watches a three-dimensional image in a larger viewing angle, the cross-talk problem of left and right eye images will also be encountered. For example, the left-eye image that is originally designated to transmit to the left eye is observed by the right eye also, thereby resulting in the binocular signal crosstalk and affecting three-dimensional imaging effects. Moreover, when the primary pixel electrode and the secondary pixel electrode of the pixel cell are vertically distributed, the degree of binocular signal crosstalk is varied if the viewer watches the three-dimensional image from a top view and a bottom view. Typically, the voltage of the secondary pixel electrode is lower than that of the primary pixel electrode, and thus the display brightness in the pixel cell secondary zone will be lower than that of the primary zone accordingly. When the viewer watches in a top view, the great majority of lights is received from the pixel cell primary zone, characterized by high brightness; in contrast, when the viewer watches in a bottom view, the great majority of lights is received from the pixel cell secondary zone, characterized by low brightness, thereby causing severer degree of binocular signal crosstalk for the former manner in comparison to the later one, and resulting in inconsistent degree of binocular signal crosstalk.
With respect to above-mentioned problems, the objective of the present disclosure is to provide a polarized three-dimensional display panel and its pixel cell, characterized by identical degree of binocular signal crosstalk when the viewer watches this display panel in a top view and a bottom view.
The present disclosure provides a pixel cell used in a polarized three-dimensional display panel, comprising:
a primary pixel electrode configured to receive a scanning signal of a first scanning line, and further to receive a data signal in a data line, so as to have a primary zone voltage;
a secondary pixel electrode configured to receive the scanning signal of the first scanning line, and further to receive the data signal in the data line, so as to have a secondary zone voltage; and
a charge-sharing unit configured to receive a scanning signal of a second scanning line, and further to share charges in the secondary pixel electrode, so that the secondary zone voltage of the secondary pixel electrode is different from the primary zone voltage of the primary pixel electrode;
wherein the primary pixel electrode and the secondary pixel electrode are distributed in a left-right manner.
Further, with regard to the aforementioned pixel cell, the area of the primary pixel electrode is smaller than that of the secondary pixel electrode.
Preferably, the area ratio between the primary pixel electrode and the secondary pixel electrode as described is 4:6.
In one embodiment according to the present disclosure, the pixel cell as described above further comprises:
a first switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the primary pixel electrode.
In one embodiment according to the present disclosure, the pixel cell as described above further comprises:
a second switching element, with its control terminal connected to the first scanning line, its first electrode connected to the data line, and its second electrode connected to the secondary pixel electrode.
In one embodiment according to the present disclosure, the charge-sharing unit of the pixel cell as described above comprises a third switching element and a charge-sharing capacitor, the third switching element with its control terminal connected to the second scanning line, its first electrode connected to the secondary pixel electrode, and its second electrode coupled with the charge-sharing capacitor.
In one embodiment according to the present disclosure, an upper electrode of the charge-sharing capacitor as described above is connected to the second electrode of the third switching element.
In one embodiment according to the present disclosure, a lower electrode of the charge-sharing capacitor as described is one part of a common electrode line.
In one embodiment according to the present disclosure, the common electrode line and the scanning line as described are formed by one single photomask.
In addition, the present disclosure also provides a polarized three-dimensional display panel, comprising an array substrate, which is provided with the pixel cells as described above.
Compared with the prior art, the present disclosure has the following advantages. According to the present disclosure, by changing the distribution structure of the pixel electrodes of pixel cell in the polarized three-dimensional display panel, the primary pixel electrode and secondary pixel electrode can be arranged in a left-right manner, so that the degree of binocular signal crosstalk is identical when the viewer watches the polarized three-dimensional display panel in a top view and a bottom view.
Other features and advantages of the present disclosure will be set forth in the description which follows, and in part will be obvious in the description, or be learned by implementing of the present disclosure. The objectives and other advantages of the present disclosure may be realized and attained by structures particularly pointed out in the description, claims and accompanying drawings.
The following drawings are presented for the purpose of further understanding of the present disclosure and constitute one integral part of this description, as well as for the purpose of better understanding of the present disclosure in combination with the embodiments, rather than limitation of the present disclosure, wherein:
To more clearly demonstrate the objectives, technical solutions, and advantages of the present disclosure, the present disclosure will be described in further detail in combination with the specific embodiments and accompanying drawings.
a primary pixel electrode zone I, configured to receive a scanning signal Gm of a first scanning line, and to receive a data signal Data in a data line under the effect of the scanning signal Gm, so as to have a primary zone voltage V_I;
a secondary pixel electrode zone II, configured to receive the scanning signal Gm of the first scanning line, and to receive the data signal Data in the data line under the effect of the scanning signal Gm, so as to have a primary zone voltage V_II; and
a charge-sharing unit, configured to receive a scanning signal Gm+1 of the second scanning line and further to share charges on the secondary pixel electrode zone II, whereby a voltage difference is caused between the secondary zone voltage V_II of the secondary pixel electrode zone II and the primary zone voltage V_I of the primary pixel electrode zone I, so that the display panel is able to achieve a preferred low color shift effect.
In comparison to the pixel cells on the array substrate of a conventional polarized three-dimensional display panel, the primary pixel electrode zone I and the secondary pixel electrode zone II of the pixel cells on the array substrate in the present disclosure are distributed in a left-right manner, so that the degree of binocular signal crosstalk is identical when the viewer watches the display panel in a top view and a bottom view.
With respect to the primary pixel electrode zone I as shown in
With respect to the secondary pixel electrode zone II as shown in
With respect to the charge-sharing unit as shown in
Preferably, the aforementioned switching elements are made of thin film transistors. The control terminals are grid electrodes, the first electrodes and the second electrodes may be drain electrodes and source electrodes respectively, which are set in accordance with the direction of current flow specifically, and will not be limited herein.
When the aforementioned primary pixel electrode and secondary pixel electrode are distributed in the left-right manner, for the viewer, the received light is the result of the interaction between the light emitted from the primary zone and the light emitted from the secondary zone, no matter the three-dimensional display panel is viewed from the top view or from the bottom view. Therefore, the degree of binocular signal crosstalk is identical with regard to the aforementioned two viewing angles, thereby improving the original problem of asymmetry of binocular signal crosstalk.
Preferably, the area of the primary pixel electrode is smaller than that of the secondary pixel electrode. With regard to the pixel cells of the conventional three-dimensional display array substrate, the area ratio between the primary pixel electrode and the secondary pixel electrode is 4:6 in general. The pixel cells of the display panel array substrate provided in the present disclosure can also be set according to the same ratio as 4:6 between the primary pixel electrode and the secondary pixel electrode. However, as the primary pixel electrode and the secondary pixel electrode are distributed in the left-right manner, the spacing area between the primary pixel electrode and the secondary pixel electrode will be increased accordingly, and thus its aperture ratio is lower than that of a conventional three-dimensional display panel. Of course, it can be optimized by adjusting the specific sizes, which is not detailed herein.
In another aspect, the present disclosure also provides one embodiment of a polarized three-dimensional display panel, comprising an array substrate, which is provided with the pixel cells as described above.
The driving method of the polarized three-dimensional display panel proposed in the present disclosure is identical with that of a conventional one, and therefore will no longer be repeatedly described herein.
Apparently, the afore-mentioned embodiments are presented for the purpose of better illustrating the present disclosure, rather than limitation of this disclosure. For one ordinarily skilled in the art changes or modifications may be made on the basis of the above-described illustration in different forms, and any obvious changes or modifications derived from the technical program of this disclosure fall within the scope of the present disclosure. Accordingly, the protection scope of the present disclosure should be subjected to the scope of protection as described in the following claims.
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Jan 17 2014 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | (assignment on the face of the patent) | / | |||
Mar 10 2014 | YE, CHENGLIANG | SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 033707 | /0506 | |
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